Finding the Fourth Proportional to 10,275.18, 14,179.74 and 5,559.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,275.18 : 14,179.74 = 5,559.48 : x
2. Step 2: Convert to fraction form
   10,275.18/14,179.74 = 5,559.48/x
3. Step 3: Cross multiply
   10,275.18x = 14,179.74 × 5,559.48
4. Step 4: Simplify right side
   10,275.18x = 78,831,980.94
5. Step 5: Solve for x
   x = 78,831,980.94/10,275.18
6. Step 6: Final answer
   x = 7,672.08